Jessica Biel was named Esquire's "Sexiest Woman Alive" in 2005, and by the looks of it, she's hoping to reclaim her title in 2012.

The "Total Recall" actress, 30, revealed her toned beach body in Puerto Rico on June 22 while taking a dip in the Atlantic Ocean. Though Biel covered up with an O'Neill wetsuit, she showed off her long legs -- and perky booty! -- in string bikini bottoms. (The star's fiance, Justin Timberlake, 31, is in town shooting his new movie, "Runner, Runner.")

How does Biel keep her body in tip-top shape? "For me, getting enough sleep, drinking lots of water, having a healthy diet, and staying away from alcohol are musts," she told ELLE in June 2011. "It's so boring, I know, but doing those things really helps."

Biel is also a fan of boxing, martial arts and yoga. "Yoga is a constant for me because it keeps my muscles long and flexible," she explained. "But now that summer's coming around, I'm planning on spending more time outdoors playing volleyball and jogging with my dog, Tina."

The actress also maintains a healthy, balanced diet, frequenting places like Real Food Daily, which specializes in organic vegan cuisine. "M Cafe is also great -- it has a lot of macrobiotic options," she told ELLE. "But you can find healthy food pretty much anywhere. I do a lot of cooking at home using grains and vegetables."

Timberlake proposed to Biel several months ago with an estimated $130,000 diamond ring. Together on-and-off for five years, the stars are in the midst of planning their summer nuptials, sources recently told Us Weekly. "It will be a big wedding. They have lots of people they want to invite."